Language and Content

Success in Mathematics

Learn About Fractions, Decimals, and Percents

My Family 1. Mama 2. Grandma 3. Sabina, my sister 4. Alex, my brother 5. Tom—me!

    My Family

  • 1. Mama

  • 2. Grandma

  • 3. Sabina, my sister

  • 4. Alex, my brother

  • 5. Tom—me!

FRACTIONDECIMALPERCENT
numerator

numerator

denominator
decimal point

decimal point
percent symbol

percent symbol

Say: three-fifths
Example: Three-fifths of my family are kids.		Say: six-tenths
Example: Six-tenths of my family are kids.		Say: sixty percent
Example: Sixty percent of my family are kids.

Study the lesson. Then do the Exercises.

Family Math

Think and Discuss

You can use fractions, decimals, or percents to describe the family in the picture.

Three-fifths of my family are kids. Six-tenths of my family are kids. Sixty percent of my family are kids.

Three-fifths of my family are kids. Six-tenths of my family are kids. Sixty percent of my family are kids.

  • 1 Write a fraction:

    Ask yourself how many of the people are kids. This is the numerator. How many people are there in the whole family? This is the denominator.

    kids

    kids

    whole family

  • 2 Write a decimal:

    Divide the numerator by the denominator.

    Show the decimal point in the answer.

    Show the decimal point in the answer.

    Add a decimal point and a zero.

  • 3 Write a percent:

    Multiply the decimal by 100. Add the percent symbol.

    percent symbol

    percent symbol

Exercises

Write a fraction, a decimal, and a percent for each answer.

  • 1 Photograph of a pizza originally with eight equal-size slices, now showing six

    Sabina ate 2 slices of pizza. How much of the pizza is left?

  • 2 Photograph of a birthday cake with six red candles and four blue candles

    How many candles are red?